COMPOSITE 125 



Burrielia gracilis, DC. 



Primary root slender, fibrous, annual. 



Hypocotyl terete, glabrous, 8-12 mm. long. 



Cotyledons linear, obtuse, entire, connate at the base and sheath- 

 ing the stem, glabrous, 1-1'G cm. long. 



Stem herbaceous, annual, erect or procumbent, terete, glabrous' 

 or nearly so at the base, and covered with an adpressed pubescence 

 upwards ; 1st intemode 1-2*7 cm. long. 



Leaves simple, entire, cauline, opposite, sessile and connate at 

 the base, very thinly pubescent, semiterete, channelled on the upper 

 side. 



First to third or fourth pair precisely similar to the cotyledons, 

 but larger. 



Baeria chrysostoma, Fisch. et Mey. 



Primary root annual, long, tapering gradually and giving off 

 only a few slender rootlets. 



Hypocotyl short, terete, glabrous, tapering indistinguishably into 

 the root. 



Cotyledons linear, semiterete, slightly flattened above, obtuse or 

 subacute, connate at the base and sheathing the stem for 3 mm., 

 very sparsely pilose, 4-4- 5 cm. long, about -5 mm. wide, recurved 

 at the tip. 



Stem herbaceous, erect, terete, glabrous or thinly pilose ; 1st 

 internode 1'4-1'7 cm. long ; 2nd 1-1-2 cm. 



Leaves simple, cauline, opposite, sessile and sheathing at the 

 base, pilose and ciliate at the margin, subsequently more or less 

 glabrescent. 



First pair linear, obtuse, or subacute, semiterete, slightly flattened 

 above and curved at the tip like the cotyledons, which they resemble 

 in general appearance. 



Second pair broader, linear, obtuse, channelled above, slightly 

 carinate beneath, coarsely and thinly ciliate at the margin, recurved 

 at the tips. 



Third pair similar, but broader and recurved at the tips. 



Lasthenia glabrata, Lindl. 



Primary root long and gradually tapering downwards, but slightly 

 branched, annual. 



Hypocotyl short, or tapering indistinguishably into the root. 



Cotyledons linear, connate at the base, sheathing the stem, flat- 

 tened above, 2-2'5 cm. long, 1 mm. wide. 



